Sapphire City Sequel sketch - Mercorabilia

I will admit that this sketch is a bit cheeky as it's written as a direct follow-on to a sketch that John Finnemore wrote for his Souvenir programme. I don't know if it has an official name but I've always referred to it as the Sapphire City sketch and it is hilariously funny - hence the desire to continue it. 
So if you ever stumble across this, Mr. Finnemore, I would just like to say - very sorry, huge fan.

Guard A: Stop it! He can see how many doors there are, you idiots! Now he knows you two both lie at least sometimes so I must always tell the truth.
Traveller 1: Oh, really? Which door leads to the city?
Guard A: Oh, bloody hell, that one.
Traveller 1: Thanks.
Guard A: No! Wait! Not that one!
<Sound of a tiger roaring and gunshots>
Traveller 1: Ahhhhh!
Guard A: Hmm – so I told the truth and they still picked the wrong door. 
Guard B: No – they must have known exactly which door you were pointing to.
Guard A: That’s never happened before.
Guard B: Yes – yes it has - that’s always happened before.
Guard A: I wonder if it would happen again.
Guard B: I seriously doubt it and don’t think you should.
Guard A: Alright I will.
<Fanfare>
Guard A: Halt traveller. In your quest to reach the Sapphire City you must now pass this test. Before you are two doors – behind one lies the path you seek. Behind the other a tiger with a gun. In front of each door is a guard – one always lies, one always tells the truth. But to aid you in your quest I can tell you that I always speak the truth.
Traveller 2: Which door is it?
Guard A: One of those.
Traveller 2: Could you be a little more specific?
Guard A: (disappointed pause) Yes, I could
Traveller 2: Oh, then will you?
Guard A: (happier) No, I won’t
Traveller 2: Oh. Hello, what do you do?
Guard B: I’m like him I always tell the truth.
Guard A: No, she doesn’t - she always lies.
Traveller 2: Oh, in that case – is this the door that leads to the Sapphire City?
Guard B: (after a pause) …Maybe.
Traveller 2: Ok – if I asked him which door leads to the City what would he say?
Guard B: (with a sigh) He’d say this one.
Traveller 2: Thanks very much.
<Sound of door opening and closing>
Guard A: Hmm. Well, that didn’t work.
Guard B: Yes, it did. It worked brilliantly and I think you should do it again.
Guard A: Yeah – maybe it should go back to how it was before.
Traveller 3: Hello.
Guard A: Ah, halt traveller….
Traveller 3: Ah yes – I’ve seen this before. Which door would he say is the way to the Sapphire City?
Guard B: This one.
Traveller 3: Thanks.
Guard A: Then again…

(You may have noticed that the third guard who was causing all the problems in the original sketch has mysteriously disappeared. Maybe they did him in, maybe he was a figment of their imagination, maybe he's just wandered off, or maybe for convenience sake he just didn't fit into the sketch sequel - we shall never know)